Seat construction for sewing and other machines



E. B. McCLUHD.

SEAT CONSTRUCTION FOR SEWING AND OTHER MACHINES.

APPLICATION FILED JAN. 17, 192I.

Patented Oct. 25, 1921.

2 SHEETSSHEET I.

6' d ,Zar 1 INVENTOR ATTORNEY WITNBSM E. B. McCLURD. SEAT CONSTRUCTIONFOR SEWING AND OTHER MACHINES APP LICATION FILED JAN. 7, 1921- Patented0017- 25, 1921.

2 SHEETS-SHEET 2.

INVENTOR ATTORNEY UNITED STATES 'ELFEET B. MGCLUBD, 0F ELIZABETHTON,TENNESSEE.

SEAT CONSTRUCTION FOR SEWING AND OTHER MACHINES.

Application filed January 17, 1921.

To all whom it may concern:

Be it knownthat I, Ennnn'r B. MGCLURD,

a citizen of the United States, residing at My present invention has forits object the provision of a seat construction for sewing machines andlike machines, characterized by the capacity of being adjusted toconveniently position an operator for the working of the machine, and bythe capacity of being moved out of the way when not in use. 1

To the attainment of the foregoing, the invention consists in theimprovement as hereinafter described and definitely claimed.

In the accompanying drawings, forming part hereof:-

Figure 1 is a view showing a sewing machine in side elevation and withmy seat construction properly applied.

Fig. 2 is a front elevation of the same.

Fig. 3 is an enlarged detail section.

Fig. 4 is an enlarged detail side elevation showing one of the toothedshanks and the dog for cooperation therewith.

Fig. 5 is a transverse section on line 55 of Fig. 3.

Similar numerals of reference designate corresponding parts in all ofthe views of the drawings.

The main frame 1 of the sewing machine may be and preferably is of theordinary well known construction, and I would here have it distinctlyunderstood that the improvement is applicable to machines other thansewing machines where the operator is seated during the operation of themachine.

In furtherance of my invention I fix to the end uprights of the mainframe 1, hollow bars 2 which are designed to carry the improvement andeffect connection of the same to the frame 1. In the present andpreferred embodiment of the invention the bars 2 serve as sheaths forendwise adjustable bars 3. The said hollow or tubular bars 2 arelongitudinally slotted as indicated by 4:, and the bars 3 are providedwith pins 5, movable in the slots 4 and adapted to prevent completewithdrawal of the bars 3 from the bars 2. The outer end portion of thebars 3 are connected together Specification of Letters Patent.

move on a fiooror other surface.

Patented Oct. 25, 1921.

Serial No. 437,904.

through the medium of a cross rod 6 which is provided with an. outwardoffset 7 Figs. 2 and 3, which is adapted to accommodate it to thetreadle of the machine when'the attachment is moved inwardly asillustrated by dotted lines in Fig. 1. Fixed on the outer end portionsof the bars 3 are upstanding braces 8 in which are arcuate slots 9.

Pivotally connected at 10 to the bars 3 are upright sheaths 11 which areprovided at their lower ends with wheels 12 adapted to The said sheaths11 are arranged alongside the braces 8 and are provided with threadedprojections 13, disposed in the arcuate slots 9, and equipped at theouter sides of the braces 8 with nuts 14. Manifestlywhen the nuts 14 areloosened the sheaths 11 may be inclined as desired or may be arranged invertical positions, afterwhich the sheaths may be adjustably fixed bytightening of the nuts 14:. The sheaths 11 are slotted as indicated by15 to receive pins 16 on vertically adjustable toothed shanks 17 and soas to prevent complete withdrawal of the shanks 17 from the sheaths 11.To adjustably fix the shanks 17 in the sheaths 11, I equip each sheath11 with a spring pressed dog 18. On the upper ends of the shanks 17 arebrackets 19, and hinged to the outer ends of the horizontal portions ofthe said brackets 19, as indicated by 20 is a seat 21. When theimprovement is positioned for use as shown by full lines in Fig. 1 theseat 21 bears on the brackets 19 throughout the length of the saidbrackets. When, however, the movable parts of the improvement are pushedunder the top of the sewing machine as shown by dotted lines in Fig. 1,the seat 21 is adapted to ride up on the fly wheel 22 of the machine; itbeing understood in this connection that the seat 21 will assume aposition above the wheel 22 and also above the belt when a belt ismounted on said wheel, and that the adjacent bracket 19 will berelatively arranged to avoid the said belt.

It will be apparent that when the moving parts of the seat constructionare in the positions shown by dotted lines in Fig. 1 the floor spaceoccupied will be materially diminished. WVhen the seat construction isto be used, the moving parts are drawn out to the full line positionshown in Fig. 1 when the seat 21 will be adequately supported by thewheels 12 and without the imposition of undue weight or strain on thecarrying bars 8. It will also be observed that the seat 21 may bequickly and easily adjusted as to height and as readily adjustably fixedagainst accidental downward movement. Very little effort is required tomove the movable parts of the improvement to and from the full lineposition shown in Fig. 1.

Extending between the rear ends of the bars Qis a rod 2 This rod 2 alsoextends through the frame uprights .1 and is equipped with nuts 3* and4*, Figs. 1 and 3, disposed at opposite sides of the frame uprights 1.By adjusting the said nuts the i said frame uprights 1 may manifestly beadjustably fixed in such spaced relation as to assure free slidingmovement'of the seat.

Connected by the pins. 16 to the shanks 17 is across brace 23, the endportions of which are disposed. vertically and are adapted to slide atthe inner sides of the vertical sheaths 11. The'said cross brace 23 isfixedly connected to the brackets 19 at points immediately below theseat 21.. It will be apparent that by reason ofthe employment of thebraces. 23 and. 24 the vertically adjustable means supporting the seat21 is rendered stiff and strong.

' Having described my invention, what I claim and desire to secure byLetters-Patent, is

1. In a seat constructionfor sewing and other machines, the combinationof slidable bars, upright supports pivotally connected at intermediatepoints in their lengths to said bars, wheels carried by the lower arms'slidable in said hollow bars and having pins disposed in the slotsthereof, across rod interposed between and connecting the slideble barsand having an lntermediate outwardly directed ofiset portion, braces onthe slidable bars and having" arcuate slots, sheaths pivotally connectedat intermediate points in their lengths with the slidable bars andhaving slots, dogs onthe upper portions of said sheaths, Wheels .on thelower arms of the sheaths, rack bars disposed in the sheaths and havingpins arranged in' the slots thereof, brackets carried by the rack bars,and a seathinged to the tions'of said brackets.

In testimony whereof I' aflixmy signature.

ELBERT B. MoCLURD.

outer end por-

